| commit | 2d42552d1c1659b014851cf449ad2fe458509128 | |
| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | |
| Mon, 23 May 2011 08:24:39 +0000 (23 10:24 +0200) | ||
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | |
| Mon, 23 May 2011 08:24:31 +0000 (23 10:24 +0200) | ||
| tree | b9ef22867ce52e23b5249a7ad38637eec40363b8 | treesnapshot (tar.gz zip) |
| parent | c26001d4e9133fe45e47eee18cfd826219e71fb9 | commitdiff |
[S390] merge page_test_dirty and page_clear_dirty
The page_clear_dirty primitive always sets the default storage key
which resets the access control bits and the fetch protection bit.
That will surprise a KVM guest that sets non-zero access control
bits or the fetch protection bit. Merge page_test_dirty and
page_clear_dirty back to a single function and only clear the
dirty bit from the storage key.
In addition move the function page_test_and_clear_dirty and
page_test_and_clear_young to page.h where they belong. This
requires to change the parameter from a struct page * to a page
frame number.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The page_clear_dirty primitive always sets the default storage key
which resets the access control bits and the fetch protection bit.
That will surprise a KVM guest that sets non-zero access control
bits or the fetch protection bit. Merge page_test_dirty and
page_clear_dirty back to a single function and only clear the
dirty bit from the storage key.
In addition move the function page_test_and_clear_dirty and
page_test_and_clear_young to page.h where they belong. This
requires to change the parameter from a struct page * to a page
frame number.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>